Nehemiah 9:7

You are Hashem, G-d, Who choose Abram and brought him out of Ur Kasdim, and gave him the name Abraham.

Many have the practice to recite, in the prayer following Shemoneh Esrei, a verse that starts and ends with the same letter as their name, or that contains their name. This is the verse for the name “Avraham.” The Talmud explains that Avraham’s original name meant that he was to be “av aram” – the father of Aram, which was the land of his birth. Later, he became “av hamon goyim” – the father of a multitude of nations – and his name was changed accordingly.